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Skeletal Muscle Pathogenesis in Polyglutamine Diseases. Cells 2022; 11:cells11132105. [PMID: 35805189 PMCID: PMC9265456 DOI: 10.3390/cells11132105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Revised: 06/24/2022] [Accepted: 06/28/2022] [Indexed: 01/27/2023] Open
Abstract
Polyglutamine diseases are characterized by selective dysfunction and degeneration of specific types of neurons in the central nervous system. In addition, nonneuronal cells can also be affected as a consequence of primary degeneration or due to neuronal dysfunction. Skeletal muscle is a primary site of toxicity of polyglutamine-expanded androgen receptor, but it is also affected in other polyglutamine diseases, more likely due to neuronal dysfunction and death. Nonetheless, pathological processes occurring in skeletal muscle atrophy impact the entire body metabolism, thus actively contributing to the inexorable progression towards the late and final stages of disease. Skeletal muscle atrophy is well recapitulated in animal models of polyglutamine disease. In this review, we discuss the impact and relevance of skeletal muscle in patients affected by polyglutamine diseases and we review evidence obtained in animal models and patient-derived cells modeling skeletal muscle.
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Li S, Schönke M, Buurstede JC, Moll TJ, Gentenaar M, Schilperoort M, Visser JA, Kaikaew K, van de Vijver D, Abbassi-Daloii T, Raz V, Aartsma-Rus A, van Putten M, Meijer OC, Kroon J. Sexual Dimorphism in Transcriptional and Functional Glucocorticoid Effects on Mouse Skeletal Muscle. Front Endocrinol (Lausanne) 2022; 13:907908. [PMID: 35898460 PMCID: PMC9309696 DOI: 10.3389/fendo.2022.907908] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Accepted: 06/17/2022] [Indexed: 11/23/2022] Open
Abstract
Muscle atrophy is common in patients with increased glucocorticoid exposure. Glucocorticoid effects are often sex-specific, and while different glucocorticoid responses between male and female subjects are reported, it is unclear why this is. In this study, we evaluated the effects of corticosterone and synthetic glucocorticoid treatment on muscle atrophy in male and female mice. We found that corticosterone treatment reduced grip strength in female mice only, whereas muscle mass was reduced in both sexes. Skeletal muscle transcriptional responses to corticosterone treatment were more pronounced and widespread in male mice. Synthetic glucocorticoid treatment reduced grip strength in both sexes, while female mice were more sensitive to muscle atrophy than male mice. To evaluate the role of androgens, chemically-castrated male mice were treated with synthetic glucocorticoids. We observed additively reduced muscle mass, but did not observe any interaction effects. Although sex differences in glucocorticoid responses in skeletal muscle are partly influenced by androgen signaling, further studies are warranted to fully delineate the underlying mechanisms.
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Affiliation(s)
- Sheng Li
- Department of Medicine, Division of Endocrinology, Leiden University Medical Center, Leiden, Netherlands
- Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, Leiden, Netherlands
| | - Milena Schönke
- Department of Medicine, Division of Endocrinology, Leiden University Medical Center, Leiden, Netherlands
- Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, Leiden, Netherlands
| | - Jacobus C. Buurstede
- Department of Medicine, Division of Endocrinology, Leiden University Medical Center, Leiden, Netherlands
- Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, Leiden, Netherlands
| | - Tijmen J.A. Moll
- Department of Medicine, Division of Endocrinology, Leiden University Medical Center, Leiden, Netherlands
- Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, Leiden, Netherlands
| | - Max Gentenaar
- Department of Medicine, Division of Endocrinology, Leiden University Medical Center, Leiden, Netherlands
- Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, Leiden, Netherlands
| | - Maaike Schilperoort
- Department of Medicine, Division of Endocrinology, Leiden University Medical Center, Leiden, Netherlands
- Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, Leiden, Netherlands
| | - Jenny A. Visser
- Department of Internal Medicine, Erasmus MC, University Medical Center Rotterdam, Rotterdam, Netherlands
| | - Kasiphak Kaikaew
- Department of Internal Medicine, Erasmus MC, University Medical Center Rotterdam, Rotterdam, Netherlands
- Department of Physiology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Davy van de Vijver
- Department of Human Genetics, Leiden University Medical Center, Leiden, Netherlands
| | - Tooba Abbassi-Daloii
- Department of Human Genetics, Leiden University Medical Center, Leiden, Netherlands
| | - Vered Raz
- Department of Human Genetics, Leiden University Medical Center, Leiden, Netherlands
| | | | - Maaike van Putten
- Department of Human Genetics, Leiden University Medical Center, Leiden, Netherlands
| | - Onno C. Meijer
- Department of Medicine, Division of Endocrinology, Leiden University Medical Center, Leiden, Netherlands
- Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, Leiden, Netherlands
| | - Jan Kroon
- Department of Medicine, Division of Endocrinology, Leiden University Medical Center, Leiden, Netherlands
- Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, Leiden, Netherlands
- *Correspondence: Jan Kroon,
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Khan MS, Shaw RM. Huntington's disease skeletal muscle has altered T-tubules. J Gen Physiol 2021; 153:e202012843. [PMID: 33978682 PMCID: PMC8126974 DOI: 10.1085/jgp.202012843] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Romer et al. explored T-tubules in skeletal muscle.
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Affiliation(s)
- Muhammad S. Khan
- Nora Eccles Harrison Cardiovascular Research and Training Institute, University of Utah, Salt Lake City, UT
| | - Robin M. Shaw
- Nora Eccles Harrison Cardiovascular Research and Training Institute, University of Utah, Salt Lake City, UT
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Romer SH, Metzger S, Peraza K, Wright MC, Jobe DS, Song LS, Rich MM, Foy BD, Talmadge RJ, Voss AA. A mouse model of Huntington's disease shows altered ultrastructure of transverse tubules in skeletal muscle fibers. J Gen Physiol 2021; 153:211860. [PMID: 33683318 PMCID: PMC7931643 DOI: 10.1085/jgp.202012637] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Revised: 11/05/2020] [Accepted: 01/26/2021] [Indexed: 12/12/2022] Open
Abstract
Huntington’s disease (HD) is a fatal and progressive condition with severe debilitating motor defects and muscle weakness. Although classically recognized as a neurodegenerative disorder, there is increasing evidence of cell autonomous toxicity in skeletal muscle. We recently demonstrated that skeletal muscle fibers from the R6/2 model mouse of HD have a decrease in specific membrane capacitance, suggesting a loss of transverse tubule (t-tubule) membrane in R6/2 muscle. A previous report also indicated that Cav1.1 current was reduced in R6/2 skeletal muscle, suggesting defects in excitation–contraction (EC) coupling. Thus, we hypothesized that a loss and/or disruption of the skeletal muscle t-tubule system contributes to changes in EC coupling in R6/2 skeletal muscle. We used live-cell imaging with multiphoton confocal microscopy and transmission electron microscopy to assess the t-tubule architecture in late-stage R6/2 muscle and found no significant differences in the t-tubule system density, regularity, or integrity. However, electron microscopy images revealed that the cross-sectional area of t-tubules at the triad were 25% smaller in R6/2 compared with age-matched control skeletal muscle. Computer simulation revealed that the resulting decrease in the R6/2 t-tubule luminal conductance contributed to, but did not fully explain, the reduced R6/2 membrane capacitance. Analyses of bridging integrator-1 (Bin1), which plays a primary role in t-tubule formation, revealed decreased Bin1 protein levels and aberrant splicing of Bin1 mRNA in R6/2 muscle. Additionally, the distance between the t-tubule and sarcoplasmic reticulum was wider in R6/2 compared with control muscle, which was associated with a decrease in junctophilin 1 and 2 mRNA levels. Altogether, these findings can help explain dysregulated EC coupling and motor impairment in Huntington’s disease.
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Affiliation(s)
- Shannon H Romer
- Department of Biological Sciences, Wright State University, Dayton, OH.,Odyssey Systems, Environmental Health Effects Laboratory, Navy Medical Research Unit, Dayton, Wright-Patterson Air Force Base, Dayton, OH
| | - Sabrina Metzger
- Department of Neuroscience, Cell Biology, and Physiology, Wright State University, Dayton, OH
| | - Kristiana Peraza
- Department of Biological Sciences, California State Polytechnic University, Pomona, Pomona, CA
| | - Matthew C Wright
- Department of Biological Sciences, California State Polytechnic University, Pomona, Pomona, CA
| | - D Scott Jobe
- Department of Biological Sciences, Wright State University, Dayton, OH
| | - Long-Sheng Song
- Division of Cardiovascular Medicine, Department of Internal Medicine, Abboud Cardiovascular Research Center, University of Iowa Carver College of Medicine, Iowa City, IA
| | - Mark M Rich
- Department of Neuroscience, Cell Biology, and Physiology, Wright State University, Dayton, OH
| | - Brent D Foy
- Department of Physics, Wright State University, Dayton, OH
| | - Robert J Talmadge
- Department of Biological Sciences, California State Polytechnic University, Pomona, Pomona, CA
| | - Andrew A Voss
- Department of Biological Sciences, Wright State University, Dayton, OH
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Bozzi M, Sciandra F. Molecular Mechanisms Underlying Muscle Wasting in Huntington's Disease. Int J Mol Sci 2020; 21:ijms21218314. [PMID: 33167595 PMCID: PMC7664236 DOI: 10.3390/ijms21218314] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Revised: 11/03/2020] [Accepted: 11/03/2020] [Indexed: 12/13/2022] Open
Abstract
Huntington’s disease (HD) is an autosomal dominant neurodegenerative disorder caused by pathogenic expansions of the triplet cytosine-adenosine-guanosine (CAG) within the Huntingtin gene. These expansions lead to a prolongation of the poly-glutamine stretch at the N-terminus of Huntingtin causing protein misfolding and aggregation. Huntingtin and its pathological variants are widely expressed, but the central nervous system is mainly affected, as proved by the wide spectrum of neurological symptoms, including behavioral anomalies, cognitive decline and motor disorders. Other hallmarks of HD are loss of body weight and muscle atrophy. This review highlights some key elements that likely provide a major contribution to muscle atrophy, namely, alteration of the transcriptional processes, mitochondrial dysfunction, which is strictly correlated to loss of energy homeostasis, inflammation, apoptosis and defects in the processes responsible for the protein quality control. The improvement of muscular symptoms has proven to slow the disease progression and extend the life span of animal models of HD, underlining the importance of a deep comprehension of the molecular mechanisms driving deterioration of muscular tissue.
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Affiliation(s)
- Manuela Bozzi
- Dipartimento Universitario di Scienze Biotecnologiche di Base, Cliniche Intensivologiche e Perioperatorie, Sezione di Biochimica e Biochimica Clinica, Università Cattolica del Sacro Cuore di Roma, Largo F. Vito 1, 00168 Roma, Italy
- Istituto di Scienze e Tecnologie Chimiche “Giulio Natta”– SCITEC Sede di Roma, Largo F. Vito 1, 00168 Roma, Italy;
- Correspondence:
| | - Francesca Sciandra
- Istituto di Scienze e Tecnologie Chimiche “Giulio Natta”– SCITEC Sede di Roma, Largo F. Vito 1, 00168 Roma, Italy;
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Vesentini G, Barbosa AMP, Damasceno DC, Marini G, Piculo F, Matheus SMM, Hallur RLS, Nunes SK, Catinelli BB, Magalhães CG, Costa R, Abbade JF, Corrente JE, Calderon IMP, Rudge MVC. Alterations in the structural characteristics of rectus abdominis muscles caused by diabetes and pregnancy: A comparative study of the rat model and women. PLoS One 2020; 15:e0231096. [PMID: 32243473 PMCID: PMC7122752 DOI: 10.1371/journal.pone.0231096] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2019] [Accepted: 03/16/2020] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND AND OBJECTIVE In the present study, we compared the effect of diabetic pregnancy on the rectus abdominis muscle (RAM) in humans and rats. We hypothesized that our animal model could provide valuable information about alterations in the RAM of women with Gestational Diabetes (GDM). METHOD Newborns female rats (n = 10/group) were administered streptozotocin (100 mg/kg body weight) subcutaneously and were mated on reaching adulthood, to develop the mild hyperglycemic pregnant (MHP) rat model. At the end of pregnancy, the mothers were sacrificed, and the RAM tissue was collected. Pregnant women without GDM (non-GDM group; n = 10) and those diagnosed with GDM (GDM group; n = 8) and undergoing treatment were recruited, and RAM samples were obtained at C-section. The RAM architecture and the distribution of the fast and slow fibers and collagen were studied by immunohistochemistry. RESULTS No statistically significant differences in the maternal and fetal characters were observed between the groups in both rats and women. However, significant changes in RAM architecture were observed. Diabetes in pregnancy increased the abundance of slow fibers and decreased fast fiber number and area in both rats and women. A decrease in collagen distribution was observed in GDM women; however, a similar change was not observed in the MHP rats. CONCLUSION Our results indicated that pregnancy- associated diabetes- induced similar structural adaptations in the RAM of women and rats with slight alterations in fiber type number and area. These findings suggest that the MHP rat model can be used for studying the effects of pregnancy-associated diabetes on the fiber structure of RAM.
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Affiliation(s)
- Giovana Vesentini
- Perinatal Diabetes Research Center, University Hospital, Botucatu Medical School, Univ Estadual Paulista_UNESP, Botucatu, São Paulo, Brazil
- Department of Gynecology and Obstetrics, São Paulo State University (UNESP), Botucatu Medical School, Botucatu, São Paulo, Brazil
| | - Angélica M. P. Barbosa
- Perinatal Diabetes Research Center, University Hospital, Botucatu Medical School, Univ Estadual Paulista_UNESP, Botucatu, São Paulo, Brazil
- Department of Physiotherapy and Occupational Therapy, São Paulo State University (UNESP), School of Philosophy and Sciences, Marilia, São Paulo, Brazil
| | - Débora C. Damasceno
- Department of Gynecology and Obstetrics, São Paulo State University (UNESP), Botucatu Medical School, Botucatu, São Paulo, Brazil
| | - Gabriela Marini
- Perinatal Diabetes Research Center, University Hospital, Botucatu Medical School, Univ Estadual Paulista_UNESP, Botucatu, São Paulo, Brazil
- Department of Gynecology and Obstetrics, São Paulo State University (UNESP), Botucatu Medical School, Botucatu, São Paulo, Brazil
- Department of Health Sciences, Universidade Sagrado Coração, Bauru, São Paulo, Brazil
| | - Fernanda Piculo
- Perinatal Diabetes Research Center, University Hospital, Botucatu Medical School, Univ Estadual Paulista_UNESP, Botucatu, São Paulo, Brazil
- Department of Gynecology and Obstetrics, São Paulo State University (UNESP), Botucatu Medical School, Botucatu, São Paulo, Brazil
| | - Selma M. M. Matheus
- Perinatal Diabetes Research Center, University Hospital, Botucatu Medical School, Univ Estadual Paulista_UNESP, Botucatu, São Paulo, Brazil
- Department of Anatomy, São Paulo State University (UNESP), Institute of Biosciences, Botucatu, São Paulo, Brazil
| | - Raghavendra L. S. Hallur
- Perinatal Diabetes Research Center, University Hospital, Botucatu Medical School, Univ Estadual Paulista_UNESP, Botucatu, São Paulo, Brazil
- Department of Gynecology and Obstetrics, São Paulo State University (UNESP), Botucatu Medical School, Botucatu, São Paulo, Brazil
| | - Sthefanie K. Nunes
- Perinatal Diabetes Research Center, University Hospital, Botucatu Medical School, Univ Estadual Paulista_UNESP, Botucatu, São Paulo, Brazil
- Department of Gynecology and Obstetrics, São Paulo State University (UNESP), Botucatu Medical School, Botucatu, São Paulo, Brazil
| | - Bruna B. Catinelli
- Perinatal Diabetes Research Center, University Hospital, Botucatu Medical School, Univ Estadual Paulista_UNESP, Botucatu, São Paulo, Brazil
- Department of Gynecology and Obstetrics, São Paulo State University (UNESP), Botucatu Medical School, Botucatu, São Paulo, Brazil
| | - Claudia G. Magalhães
- Perinatal Diabetes Research Center, University Hospital, Botucatu Medical School, Univ Estadual Paulista_UNESP, Botucatu, São Paulo, Brazil
- Department of Gynecology and Obstetrics, São Paulo State University (UNESP), Botucatu Medical School, Botucatu, São Paulo, Brazil
| | - Roberto Costa
- Perinatal Diabetes Research Center, University Hospital, Botucatu Medical School, Univ Estadual Paulista_UNESP, Botucatu, São Paulo, Brazil
- Department of Gynecology and Obstetrics, São Paulo State University (UNESP), Botucatu Medical School, Botucatu, São Paulo, Brazil
| | - Joelcio F. Abbade
- Perinatal Diabetes Research Center, University Hospital, Botucatu Medical School, Univ Estadual Paulista_UNESP, Botucatu, São Paulo, Brazil
- Department of Gynecology and Obstetrics, São Paulo State University (UNESP), Botucatu Medical School, Botucatu, São Paulo, Brazil
| | - José E. Corrente
- Perinatal Diabetes Research Center, University Hospital, Botucatu Medical School, Univ Estadual Paulista_UNESP, Botucatu, São Paulo, Brazil
- Department of Biostatistics, São Paulo State University (UNESP), Bioscience Institute, Botucatu, São Paulo, Brazil
| | - Iracema M. P. Calderon
- Perinatal Diabetes Research Center, University Hospital, Botucatu Medical School, Univ Estadual Paulista_UNESP, Botucatu, São Paulo, Brazil
- Department of Gynecology and Obstetrics, São Paulo State University (UNESP), Botucatu Medical School, Botucatu, São Paulo, Brazil
| | - Marilza V. C. Rudge
- Perinatal Diabetes Research Center, University Hospital, Botucatu Medical School, Univ Estadual Paulista_UNESP, Botucatu, São Paulo, Brazil
- Department of Gynecology and Obstetrics, São Paulo State University (UNESP), Botucatu Medical School, Botucatu, São Paulo, Brazil
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Zart S, Berger J, Ludwig O, Knauth J, Fröhlich M. Frequency-Dependent Reaction of the Triceps Surae Muscle of the Mouse During Electromyostimulation. Front Physiol 2020; 11:150. [PMID: 32184734 PMCID: PMC7058786 DOI: 10.3389/fphys.2020.00150] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Accepted: 02/11/2020] [Indexed: 12/02/2022] Open
Abstract
The difference in the efficacy of altered stimulation parameters in whole-body-electromyostimulation training (WB-EMS) has hardly been examined. Higher impulse frequencies (>50 Hz) might be most adequate for strength gains because of the force frequency relationship (FFR), which describes a greater force production by increasing the applied frequency. Frequencies below this value, however, also seem to have positive influences on muscle strength increases. Therefore, the aim of this study was to analyze possible muscle length changes to different stimulation frequencies of the dissected mouse triceps surae muscle. A bending rod transducer was used to measure and compare changes in muscle lengths at different frequencies in relation to the initial length in the prepared muscle. We found significant differences between the muscle shortening at different frequencies (p < 0.001). At 20 Hz the largest muscle shortening was observed (20 Hz = 3.32 ± 2.06, 60 Hz = 0.77 ± 0.58, 85 Hz = 0.32 ± 0.29, 100 Hz = 0.31 ± 0.29). From a frequency of 60 Hz, the muscle shortening decreased progressively, at stimulation frequencies above 60 Hz the lowest shortenings were recorded. The results demonstrate a different behavior of the isolated triceps surae muscle of the mouse in an ex vivo environment. Even if there is no FFR in this investigation, the results indicate a higher metabolic demand using higher frequencies in electromyostimulation, despite the experimental execution in ex vivo design. Therefore, future studies should take this faster fatigue into account when drawing up training protocols in order to counteract possible frequency modulations.
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Affiliation(s)
- Sebastian Zart
- Department of Sport Science, Technische Universität Kaiserslautern, Kaiserslautern, Germany
| | - Joshua Berger
- Department of Sport Science, Technische Universität Kaiserslautern, Kaiserslautern, Germany
| | - Oliver Ludwig
- Department of Sport Science, Technische Universität Kaiserslautern, Kaiserslautern, Germany
| | - Janosch Knauth
- Department of Sport Science, Technische Universität Kaiserslautern, Kaiserslautern, Germany
| | - Michael Fröhlich
- Department of Sport Science, Technische Universität Kaiserslautern, Kaiserslautern, Germany
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Dumitru A, Radu BM, Radu M, Cretoiu SM. Muscle Changes During Atrophy. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2019; 1088:73-92. [PMID: 30390248 DOI: 10.1007/978-981-13-1435-3_4] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Muscle atrophy typically is a direct effect of protein degradation induced by a diversity of pathophysiologic states such as disuse, immobilization, denervation, aging, sepsis, cachexia, glucocorticoid treatment, hereditary muscular disorders, cancer, diabetes and obesity, kidney and heart failure, and others. Muscle atrophy is defined by changes in the muscles, consisting in shrinkage of myofibers, changes in the types of fiber and myosin isoforms, and a net loss of cytoplasm, organelles and overall a protein loss. Although in the literature there are extensive studies in a range of animal models, the paucity of human data is a reality. This chapter is focused on various aspects of muscle wasting and describes the transitions of myofiber types during the progression of muscle atrophy in several pathological states. Clinical conditions associated with muscle atrophy have been grouped based on the fast-to-slow or slow-to-fast fiber-type shifts. We have also summarized the ultrastructural and histochemical features characteristic for muscle atrophy in clinical and experimental models for aging, cancer, diabetes and obesity, and heart failure and arrhythmia.
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Affiliation(s)
- Adrian Dumitru
- Department of Pathology, Emergency University Hospital, Bucharest, Romania
| | - Beatrice Mihaela Radu
- Faculty of Biology, Department of Anatomy, Animal Physiology and Biophysics, University of Bucharest, Bucharest, Romania.,Life, Environmental and Earth Sciences Division, Research Institute of the University of Bucharest (ICUB), Bucharest, Romania
| | - Mihai Radu
- Department of Life & Environmental Physics, 'Horia Hulubei' National Institute for Physics & Nuclear Engineering, Magurele, Romania
| | - Sanda Maria Cretoiu
- Division of Cell and Molecular Biology and Histology, Carol Davila University of Medicine and Pharmacy, Bucharest, Romania.
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9
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Lin Z, Wei L, Cai W, Zhu Y, Tucholski T, Mitchell SD, Guo W, Ford SP, Diffee GM, Ge Y. Simultaneous Quantification of Protein Expression and Modifications by Top-down Targeted Proteomics: A Case of the Sarcomeric Subproteome. Mol Cell Proteomics 2019; 18:594-605. [PMID: 30591534 PMCID: PMC6398208 DOI: 10.1074/mcp.tir118.001086] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2018] [Revised: 12/08/2018] [Indexed: 12/14/2022] Open
Abstract
Determining changes in protein expression and post-translational modifications (PTMs) is crucial for elucidating cellular signal transduction and disease mechanisms. Conventional antibody-based approaches have inherent problems such as the limited availability of high-quality antibodies and batch-to-batch variation. Top-down mass spectrometry (MS)-based proteomics has emerged as the most powerful method for characterization and quantification of protein modifications. Nevertheless, robust methods to simultaneously determine changes in protein expression and PTMs remain lacking. Herein, we have developed a straightforward and robust top-down liquid chromatography (LC)/MS-based targeted proteomics platform for simultaneous quantification of protein expression and PTMs with high throughput and high reproducibility. We employed this method to analyze the sarcomeric subproteome from various muscle types of different species, which successfully revealed skeletal muscle heterogeneity and cardiac developmental changes in sarcomeric protein isoform expression and PTMs. As demonstrated, this targeted top-down proteomics platform offers an excellent 'antibody-independent' alternative for the accurate quantification of sarcomeric protein expression and PTMs concurrently in complex mixtures, which is generally applicable to different species and various tissue types.
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Affiliation(s)
- Ziqing Lin
- From the ‡Department of Cell and Regenerative Biology, University of Wisconsin-Madison, Madison, Wisconsin 53705
- §Human Proteomics Program, University of Wisconsin-Madison, Madison, WI 53705
| | - Liming Wei
- From the ‡Department of Cell and Regenerative Biology, University of Wisconsin-Madison, Madison, Wisconsin 53705
- ¶Institutes of Biomedical Sciences, Fudan University, Shanghai, 200032, P. R. China
| | - Wenxuan Cai
- From the ‡Department of Cell and Regenerative Biology, University of Wisconsin-Madison, Madison, Wisconsin 53705
- ‖Molecular & Cellular Pharmacology Training Program, University of Wisconsin-Madison, Madison, WI 53705
| | - Yanlong Zhu
- From the ‡Department of Cell and Regenerative Biology, University of Wisconsin-Madison, Madison, Wisconsin 53705
- §Human Proteomics Program, University of Wisconsin-Madison, Madison, WI 53705
| | - Trisha Tucholski
- **Department of Chemistry, University of Wisconsin-Madison, Madison, WI 53706
| | - Stanford D Mitchell
- From the ‡Department of Cell and Regenerative Biology, University of Wisconsin-Madison, Madison, Wisconsin 53705
- ‖Molecular & Cellular Pharmacology Training Program, University of Wisconsin-Madison, Madison, WI 53705
| | - Wei Guo
- ‡‡Department of Animal Science, Fetal Programming Center, University of Wyoming, Laramie, Wyoming 82071
| | - Stephen P Ford
- ‡‡Department of Animal Science, Fetal Programming Center, University of Wyoming, Laramie, Wyoming 82071
| | - Gary M Diffee
- §§Department of Kinesiology, University of Wisconsin-Madison, Madison, WI 53705
| | - Ying Ge
- From the ‡Department of Cell and Regenerative Biology, University of Wisconsin-Madison, Madison, Wisconsin 53705;
- §Human Proteomics Program, University of Wisconsin-Madison, Madison, WI 53705
- ‖Molecular & Cellular Pharmacology Training Program, University of Wisconsin-Madison, Madison, WI 53705
- **Department of Chemistry, University of Wisconsin-Madison, Madison, WI 53706
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10
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Ahn JS, Kim DH, Park HB, Han SH, Hwang S, Cho IC, Lee JW. Ectopic Overexpression of Porcine Myh1 Increased in Slow Muscle Fibers and Enhanced Endurance Exercise in Transgenic Mice. Int J Mol Sci 2018; 19:ijms19102959. [PMID: 30274168 PMCID: PMC6213911 DOI: 10.3390/ijms19102959] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2018] [Revised: 09/19/2018] [Accepted: 09/26/2018] [Indexed: 11/23/2022] Open
Abstract
Myosin heavy chain (MyHC) isoforms consist of Myh7, Myh2, Myh1, and Myh4, which are expressed in skeletal muscle tissues during postnatal development. These genes influence the contraction–relaxation activity in skeletal muscles and are involved in determining muscle composition such as the proportion of fast-to-slow and/or slow-to-fast fiber types. Among them, Myh1 is associated with skeletal muscle contraction and is involved in both slow-to-fast and fast-to-slow transition. However, the muscle transition mechanism is not well understood. For this study, we first produced porcine Myh1 transgenic (TG) mice to study whether the ectopic expressed porcine Myh1 gene had any effects on muscle composition, especially on slow-type muscle components. Our results showed that the factors associated with slow muscles, such as Myh7, Myoglobin, Troponin (slow-type units), and cytochrome C, were highly expressed in the quadriceps muscles of Myh1 transgenic mice. Furthermore, the ectopic porcine MYH1 protein was located only in the slow-type muscle fibers of the quadriceps muscles in Myh1 transgenic mice. In physical endurance tests, Myh1 transgenic mice ran longer and further on a treadmill than wild-type (WT) mice. These data fully supported our hypothesis that Myh1 is associated with slow muscle composition, with overexpression of Myh1 in muscle tissues possibly being a new key in modulating muscle fiber types. Our study provides a better understanding of muscle composition metabolism, physical mobility, and genetic factors in muscle fatigue.
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Affiliation(s)
- Jin Seop Ahn
- Biotherapeutics Translational Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon 34141, Korea.
| | - Dong-Hwan Kim
- Biotherapeutics Translational Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon 34141, Korea.
- Department of Functional Genomics, University of Science and Technology, Daejeon 34113, Korea.
| | - Hee-Bok Park
- Subtropical Livestock Research Institute, National Institute of Animal Science, Jeju 63242, Korea.
| | - Sang-Hyun Han
- Educational Science Research Institute, Jeju National University, Jeju 63243, Korea.
| | - Seongsoo Hwang
- Animal Biotechnology Division, National Institute of Animal Science, Wanju 55365, Korea.
| | - In-Cheol Cho
- Animal Genetics and Bioinformatics Division, National Institute of Animal Science, Wanju 55365, Korea.
| | - Jeong-Woong Lee
- Biotherapeutics Translational Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon 34141, Korea.
- Department of Functional Genomics, University of Science and Technology, Daejeon 34113, Korea.
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11
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Weydt P, Dupuis L, Petersen Å. Thermoregulatory disorders in Huntington disease. HANDBOOK OF CLINICAL NEUROLOGY 2018; 157:761-775. [PMID: 30459039 DOI: 10.1016/b978-0-444-64074-1.00047-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Huntington disease (HD) is a paradigmatic autosomal-dominant adult-onset neurodegenerative disease. Since the identification of an abnormal expansion of a trinucleotide repeat tract in the huntingtin gene as the underlying genetic defect, a broad range of transgenic animal models of the disease has become available and these have helped to unravel the relevant molecular pathways in unprecedented detail. Of note, some of the most informative of these models develop thermoregulatory defects such as hypothermia, problems with adaptive thermogenesis, and an altered circadian temperature rhythm. Both central, e.g., in the hypothalamus and peripheral, i.e., the brown adipose tissue and skeletal muscle, problems contribute to the phenotype. Importantly, these structures and pathways are also affected in human HD. Yet, currently the evidence for bona fide thermodysregulation in human HD patients remains anecdotal. This may be due to a lack of reliable tools for monitoring body temperature in an outpatient setting. Regardless, study of the temperature phenotype has contributed to the identification of unexpected molecular targets, such as the PGC-1α pathway.
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Affiliation(s)
- Patrick Weydt
- Department of Neurodegenerative Diseases and Gerontopsychiatry/Neurology, University of Bonn Medical Center, Bonn, Germany.
| | - Luc Dupuis
- Faculty of Medicine, University of Strasbourg, Strasbourg, France
| | - Åsa Petersen
- Translational Neuroendocrine Research Unit, Department of Experimental Medical Sciences, Lund University, Lund, Sweden
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12
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Bondulich MK, Jolinon N, Osborne GF, Smith EJ, Rattray I, Neueder A, Sathasivam K, Ahmed M, Ali N, Benjamin AC, Chang X, Dick JRT, Ellis M, Franklin SA, Goodwin D, Inuabasi L, Lazell H, Lehar A, Richard-Londt A, Rosinski J, Smith DL, Wood T, Tabrizi SJ, Brandner S, Greensmith L, Howland D, Munoz-Sanjuan I, Lee SJ, Bates GP. Myostatin inhibition prevents skeletal muscle pathophysiology in Huntington's disease mice. Sci Rep 2017; 7:14275. [PMID: 29079832 PMCID: PMC5660167 DOI: 10.1038/s41598-017-14290-3] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2017] [Accepted: 10/06/2017] [Indexed: 11/09/2022] Open
Abstract
Huntington's disease (HD) is an inherited neurodegenerative disorder of which skeletal muscle atrophy is a common feature, and multiple lines of evidence support a muscle-based pathophysiology in HD mouse models. Inhibition of myostatin signaling increases muscle mass, and therapeutic approaches based on this are in clinical development. We have used a soluble ActRIIB decoy receptor (ACVR2B/Fc) to test the effects of myostatin/activin A inhibition in the R6/2 mouse model of HD. Weekly administration from 5 to 11 weeks of age prevented body weight loss, skeletal muscle atrophy, muscle weakness, contractile abnormalities, the loss of functional motor units in EDL muscles and delayed end-stage disease. Inhibition of myostatin/activin A signaling activated transcriptional profiles to increase muscle mass in wild type and R6/2 mice but did little to modulate the extensive Huntington's disease-associated transcriptional dysregulation, consistent with treatment having little impact on HTT aggregation levels. Modalities that inhibit myostatin signaling are currently in clinical trials for a variety of indications, the outcomes of which will present the opportunity to assess the potential benefits of targeting this pathway in HD patients.
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Affiliation(s)
- Marie K Bondulich
- Sobell Department of Motor Neuroscience and Movement Disorders, University College London Institute of Neurology, London, WC1N 3BG, UK
- Department Medical and Molecular Genetics, King's College London, London, SE1 9RT, UK
- Huntington's Disease Centre, UCL Institute of Neurology, London, WC1N 3BG, UK
| | - Nelly Jolinon
- Department Medical and Molecular Genetics, King's College London, London, SE1 9RT, UK
| | - Georgina F Osborne
- Sobell Department of Motor Neuroscience and Movement Disorders, University College London Institute of Neurology, London, WC1N 3BG, UK
- Department Medical and Molecular Genetics, King's College London, London, SE1 9RT, UK
- Huntington's Disease Centre, UCL Institute of Neurology, London, WC1N 3BG, UK
| | - Edward J Smith
- Sobell Department of Motor Neuroscience and Movement Disorders, University College London Institute of Neurology, London, WC1N 3BG, UK
- Department Medical and Molecular Genetics, King's College London, London, SE1 9RT, UK
- Huntington's Disease Centre, UCL Institute of Neurology, London, WC1N 3BG, UK
| | - Ivan Rattray
- Department Medical and Molecular Genetics, King's College London, London, SE1 9RT, UK
| | - Andreas Neueder
- Sobell Department of Motor Neuroscience and Movement Disorders, University College London Institute of Neurology, London, WC1N 3BG, UK
- Department Medical and Molecular Genetics, King's College London, London, SE1 9RT, UK
- Huntington's Disease Centre, UCL Institute of Neurology, London, WC1N 3BG, UK
| | - Kirupa Sathasivam
- Sobell Department of Motor Neuroscience and Movement Disorders, University College London Institute of Neurology, London, WC1N 3BG, UK
- Department Medical and Molecular Genetics, King's College London, London, SE1 9RT, UK
- Huntington's Disease Centre, UCL Institute of Neurology, London, WC1N 3BG, UK
| | - Mhoriam Ahmed
- Sobell Department of Motor Neuroscience and Movement Disorders, University College London Institute of Neurology, London, WC1N 3BG, UK
- MRC Centre for Neuromuscular Diseases, UCL Institute of Neurology, London, WC1N 3BG, UK
| | - Nadira Ali
- Sobell Department of Motor Neuroscience and Movement Disorders, University College London Institute of Neurology, London, WC1N 3BG, UK
- Department Medical and Molecular Genetics, King's College London, London, SE1 9RT, UK
- Huntington's Disease Centre, UCL Institute of Neurology, London, WC1N 3BG, UK
| | - Agnesska C Benjamin
- Sobell Department of Motor Neuroscience and Movement Disorders, University College London Institute of Neurology, London, WC1N 3BG, UK
- Department Medical and Molecular Genetics, King's College London, London, SE1 9RT, UK
- Huntington's Disease Centre, UCL Institute of Neurology, London, WC1N 3BG, UK
| | - Xiaoli Chang
- Department Molecular Biology and Genetics, The Johns Hopkins University School of Medicine, Baltimore, MD, 21205, USA
| | - James R T Dick
- Sobell Department of Motor Neuroscience and Movement Disorders, University College London Institute of Neurology, London, WC1N 3BG, UK
- MRC Centre for Neuromuscular Diseases, UCL Institute of Neurology, London, WC1N 3BG, UK
| | - Matthew Ellis
- Division of Neuropathology, UCL Institute of Neurology, London, WC1N 3BG, UK
- Department of Neurodegenerative disease, UCL Institute of Neurology, London, WC1N 3BG, UK
| | - Sophie A Franklin
- Sobell Department of Motor Neuroscience and Movement Disorders, University College London Institute of Neurology, London, WC1N 3BG, UK
- Department Medical and Molecular Genetics, King's College London, London, SE1 9RT, UK
- Huntington's Disease Centre, UCL Institute of Neurology, London, WC1N 3BG, UK
| | - Daniel Goodwin
- Sobell Department of Motor Neuroscience and Movement Disorders, University College London Institute of Neurology, London, WC1N 3BG, UK
- Department Medical and Molecular Genetics, King's College London, London, SE1 9RT, UK
- Huntington's Disease Centre, UCL Institute of Neurology, London, WC1N 3BG, UK
| | - Linda Inuabasi
- Department Medical and Molecular Genetics, King's College London, London, SE1 9RT, UK
| | - Hayley Lazell
- Sobell Department of Motor Neuroscience and Movement Disorders, University College London Institute of Neurology, London, WC1N 3BG, UK
- Department Medical and Molecular Genetics, King's College London, London, SE1 9RT, UK
- Huntington's Disease Centre, UCL Institute of Neurology, London, WC1N 3BG, UK
| | - Adam Lehar
- Department Molecular Biology and Genetics, The Johns Hopkins University School of Medicine, Baltimore, MD, 21205, USA
| | - Angela Richard-Londt
- Division of Neuropathology, UCL Institute of Neurology, London, WC1N 3BG, UK
- Department of Neurodegenerative disease, UCL Institute of Neurology, London, WC1N 3BG, UK
| | - Jim Rosinski
- CHDI Management/CHDI Foundation Inc, New York, NY, 10001, USA
| | - Donna L Smith
- Department Medical and Molecular Genetics, King's College London, London, SE1 9RT, UK
| | - Tobias Wood
- Department of Neuroimaging, King's College London, Institute of Psychiatry, London, SE5 8AF, UK
| | - Sarah J Tabrizi
- Huntington's Disease Centre, UCL Institute of Neurology, London, WC1N 3BG, UK
- Department of Neurodegenerative disease, UCL Institute of Neurology, London, WC1N 3BG, UK
| | - Sebastian Brandner
- Division of Neuropathology, UCL Institute of Neurology, London, WC1N 3BG, UK
- Department of Neurodegenerative disease, UCL Institute of Neurology, London, WC1N 3BG, UK
| | - Linda Greensmith
- Sobell Department of Motor Neuroscience and Movement Disorders, University College London Institute of Neurology, London, WC1N 3BG, UK
- MRC Centre for Neuromuscular Diseases, UCL Institute of Neurology, London, WC1N 3BG, UK
| | - David Howland
- CHDI Management/CHDI Foundation Inc, New York, NY, 10001, USA
| | | | - Se-Jin Lee
- Department Molecular Biology and Genetics, The Johns Hopkins University School of Medicine, Baltimore, MD, 21205, USA
| | - Gillian P Bates
- Sobell Department of Motor Neuroscience and Movement Disorders, University College London Institute of Neurology, London, WC1N 3BG, UK.
- Department Medical and Molecular Genetics, King's College London, London, SE1 9RT, UK.
- Huntington's Disease Centre, UCL Institute of Neurology, London, WC1N 3BG, UK.
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13
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Paré MF, Jasmin BJ. Chronic 5-Aminoimidazole-4-Carboxamide-1-β-d-Ribofuranoside Treatment Induces Phenotypic Changes in Skeletal Muscle, but Does Not Improve Disease Outcomes in the R6/2 Mouse Model of Huntington's Disease. Front Neurol 2017; 8:516. [PMID: 29021780 PMCID: PMC5623671 DOI: 10.3389/fneur.2017.00516] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2017] [Accepted: 09/14/2017] [Indexed: 12/29/2022] Open
Abstract
Huntington’s disease (HD) is an autosomal dominant neurodegenerative genetic disorder characterized by motor, cognitive, and psychiatric symptoms. It is well established that regular physical activity supports brain health, benefiting cognitive function, mental health as well as brain structure and plasticity. Exercise mimetics (EMs) are a group of drugs and small molecules that target signaling pathways in skeletal muscle known to be activated by endurance exercise. The EM 5-aminoimidazole-4-carboxamide-1-β-d-ribofuranoside (AICAR) has been shown to induce cognitive benefits in healthy mice. Since AICAR does not readily cross the blood–brain barrier, its beneficial effect on the brain has been ascribed to its impact on skeletal muscle. Our objective, therefore, was to examine the effect of chronic AICAR treatment on the muscular and neurological pathology in a mouse model of HD. To this end, R6/2 mice were treated with AICAR for 8 weeks and underwent regular neurobehavioral testing. Under our conditions, AICAR increased expression of PGC-1α, a powerful phenotypic modifier of muscle, and induced the expected shift toward a more oxidative muscle phenotype in R6/2 mice. However, this treatment failed to induce benefits on HD progression. Indeed, neurobehavioral deficits, striatal, and muscle mutant huntingtin aggregate density, as well as muscle atrophy were not mitigated by the chronic administration of AICAR. Although the muscle adaptations seen in HD mice following AICAR treatment may still provide therapeutically relevant benefits to patients with limited mobility, our findings indicate that under our experimental conditions, AICAR had no effect on several hallmarks of HD.
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Affiliation(s)
- Marie-France Paré
- Faculty of Medicine, Department of Cellular and Molecular Medicine, University of Ottawa, Ottawa, ON, Canada
| | - Bernard J Jasmin
- Faculty of Medicine, Department of Cellular and Molecular Medicine, University of Ottawa, Ottawa, ON, Canada
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14
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Depressed Synaptic Transmission and Reduced Vesicle Release Sites in Huntington's Disease Neuromuscular Junctions. J Neurosci 2017; 37:8077-8091. [PMID: 28724748 DOI: 10.1523/jneurosci.0313-17.2017] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2017] [Revised: 07/06/2017] [Accepted: 07/11/2017] [Indexed: 01/25/2023] Open
Abstract
Huntington's disease (HD) is a progressive and fatal degenerative disorder that results in debilitating cognitive and motor dysfunction. Most HD studies have focused on degeneration of the CNS. We previously discovered that skeletal muscle from transgenic R6/2 HD mice is hyperexcitable due to decreased chloride and potassium conductances. The progressive and early onset of these defects suggest a primary myopathy in HD. In this study, we examined the relationship between neuromuscular transmission and skeletal muscle hyperexcitability. We used an ex vivo preparation of the levator auris longus muscle from male and female late-stage R6/2 mice and age-matched wild-type controls. Immunostaining of the synapses and molecular analyses revealed no evidence of denervation. Physiologically, we recorded spontaneous miniature endplate currents (mEPCs) and nerve-evoked EPCs (eEPCs) under voltage-clamp, which, unlike current-clamp records, were independent of the changes in muscle membrane properties. We found a reduction in the number of vesicles released per action potential (quantal content) in R6/2 muscle, which analysis of eEPC variance and morphology indicate is caused by a reduction in the number of vesicle release sites (n) rather than a change in the probability of release (prel). Furthermore, analysis of high-frequency stimulation trains suggests an impairment in vesicle mobilization. The depressed neuromuscular transmission in R6/2 muscle may help compensate for the muscle hyperexcitability and contribute to motor impersistence.SIGNIFICANCE STATEMENT Recent evidence indicates that Huntington's disease (HD) is a multisystem disorder. Our examination of neuromuscular transmission in this study reveals defects in the motor nerve terminal that may compensate for the muscle hyperexcitability in HD. The technique we used eliminates the effects of the altered muscle membrane properties on synaptic currents and thus provides hitherto the most detailed analysis of synaptic transmission in HD. Clinically, the striking depression of neurotransmission we found may help explain the motor impersistence in HD patients. Therapies that target the highly accessible peripheral nerve and muscle system provide a promising new avenue to lessen the debilitating motor symptoms of HD.
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